Jul 15, 2004

Editor's note: This story was revised Jul 19, 2004, to include additional information about the percentage of West Nile virus infections that result in illness.

(CIDRAP News)  Now that West Nile virus (WNV) is in North America to stay, mosquito control is becoming an important task of the public health system, West Nile experts said at a public health convention in St. Paul today.